Evaporation is called as

$(a)$ Compare a block of wood,water,and air on the basis of the following:
$(i)$ Compressibility
$(ii)$ Particle motion
$(iii)$ Rigidity
$(b)$ Account for the following:
$(i)$ Gases exert pressure on the walls of the container.
$(ii)$ Liquids can be called fluids.

State whether the following statement is true or false:
The diffusion in liquids depends upon the thickness (viscosity) as well as on the chemical nature of the diffusing liquids.

The property to flow is unique to fluids. Which one of the following statements is correct?

Name the state of matter in which:
$(a)$ Layers of particles can slip and slide over one another easily.
$(b)$ Particles just move around randomly because of very weak force of attraction.

How does the melting point of a substance indicate the strength of its intermolecular forces of attraction?